Wire Solder

Kester Formula #331 is a high-activity, water soluble core flux for
soldering difficult metals on printed circuit boards. It exhibits the
same fast action and mild properties as Kesters popular 2331-ZX
neutral organic water soluble liquid flux. The flux is more heat
stable than most organic fluxes, resulting in minimal smoke and odor.
Its residue can be completely removed with a simple water rinse.
* Sn63Pb43 Alloy
* .015" and 0.031" Wire Diameters
* #331 Water Soluble Flux
* #66 Flux Core Size

Kester 245 No-clean Cored Wire was developed to complement low
residue liquid fluxes being used by the electronics industry. The
chemistry is based on some of the same principles that have been
safely used for years in mildly activated rosin fluxes.

POWER CORE WS101 _wire solder_ is a high activated water washable for
repairing through-hole, mixed and surface mount assemblies. The flux
core provides faster and better fluxing activity than RA flux cores.
WS101 flux is formulated to provide high activity soldering, leaving
an easily washable residue in plain water without the need for
cleaning additives.

This is a lead-free, water soluble cored wire solder. It has a SAC305
lead-free alloy, #331 water soluble flux, and #66 flux core size.
Kester's SAC305 lead-free wire solder is comprised of 96.5% Tin, 3.0%
Silver, and 0.5% Copper (Sn96.5/Ag3.0/Cu0.5) with a melting
temperature range of 422°F to 428°F. Kester lead-free wire solders
have been tested and proved to give good contact angles and shiny
joints. Kester Formula #331 is a high-activity, water soluble core
flux for soldering difficult metals. It exhibits the same fast action
and mild properties as Kester's popular 2331-ZX neutral organic water
soluble liquid flux. The flux is more heat stable than most organic
fluxes, resulting in minimal smoke and odor. Its residue can be
completely removed with a simple water rinse. Kester #331 is
classified as ORH1 per J-STD-004.
* SAC305 (Sn96.5/Ag3.0/Cu0.5) Lead-Free Alloy
* .015" and 0.31" Wire Diameters
* #331 Water Soluble Flux
* #66 Flux Core Size

Kester “275” No-Clean Flux for cored solder wire was developed to
provide superior wetting performance for hand soldering in the
electronics industry. The chemistry is based on some of the same
principles that have been safely used for years in mildly activated
rosin fluxes.